'The Voice' UK coaches 'told to toughen up, be meaner to finalists'

The Voice UK coaches have reportedly been told to "toughen up" by show producers.

Bosses are said to have informed coaches Jessie J, will.i.am, Danny O'Donoghue and Sir Tom Jones to tell finalists the truth about their performances rather than making sure to be overly pleasant in comparison to their X Factor and Britain's Got Talent rivals.